Steam Humidifier; Damper And Mixing; Heat Recovery Unit - CIAT Climaciat Instruction Manual

9.7 Steam humidifier

Warning!
Follow the safety instructions (see § 2 - SAFETY INSTRUCTIONS).
9.7.1. Pre-commissioning check
ƒ Check the cleanliness of the rails and the pan and the position of the eliminator cells and look for any damage.
ƒ Make sure the water shut-off valve to the humidifier is open.
ƒ Check the condition of the pipe assembly (supply/drainage/condensates).
ƒ The drain pan siphon (option) must be activated during commissioning.
ƒ Make sure the box is clean and free from foreign objects. Remove any impurities using a vacuum cleaner and/or a cleaning
product.
ƒ Check the wiring.
ƒ Check that the humidity sensor (option) is operating correctly.
ƒ Follow the instructions in the manual from the manufacturer of the standalone device supplied with the unit.
9.7.2 System start-up
ƒ Follow the instructions in the manual from the manufacturer of the standalone device supplied with the unit. If the control
(option) is supplied by us, consult the control manual.
ƒ In this phase of the system start-up, it may be a while before the nominal production rate is reached. This depends primarily
on the conductivity of the supply water, and may be several hours.

9.8 Damper and mixing

9.8.1 Condensate drain
ƒ In the mixing box:
- Check the cleanliness of the drain pan
- Fill the drain trap.
- Check that the condensate is draining correctly
9.8.2 System start-up
Warning!
Follow the safety instructions (see § 2 - SAFETY INSTRUCTIONS).
ƒ Damper:
- Make sure the dampers are in the open position before starting up the fans.
- Make sure the damper casing is clean and free from foreign objects. If necessary, remove any impurities using a vacuum
cleaner and/or cleaning product.
The sharp increase in the air pressure when the fire damper is closed may cause irreversible damage to the blades.
ƒ Servomotors:
- Actuate the servomotors in the fully closed position. Make sure the dampers are fully closed and that the blades are
perfectly joined.
- Check the damper's direction of rotation (servomotor uncoupled) and correct if necessary.
- Retighten the servomotor coupling.
- If necessary, set the blades to fully closed and adjust the end of travel.
- Actuate the servomotors in the fully open position. Make sure that the blades are parallel to the air flow direction.
- If necessary, set the blades to fully open and adjust the end of travel.
- If the blades are not visible, a groove on the shaft of the dampers and extensions can be used to locate the open and
closed positions of the dampers.
AHUs for ATEX zones must only be equipped with suitable servomotors. Electrical equipment must be grounded + alu.
blades

9.9 Heat recovery unit

9.9.1 Plate heat exchangers
Warning!
Follow the safety instructions (see § 2 - SAFETY INSTRUCTIONS).
9.9.1.1 Pre-commissioning check
• Cleanliness is a determining factor in the unit's performance, therefore check the condition of the plates, the fouling level, the
corrosion level and for any damage. Remove any impurities using a vacuum cleaner and/or a cleaning product.
• Check the condition of the gaskets and make sure there are no foreign objects.
• The drain pan siphon (option) must be activated during commissioning.
• Check the servomotor wiring if dampers are installed.
9.9.1.2 System start-up
• Make sure the Bypass dampers are operating correctly (See § 9.8 Dampers).
• Make sure the pressure and temperature sensors are operating correctly.
EN - 28